package com.wolffy.flink.source;

import org.apache.flink.api.common.eventtime.WatermarkStrategy;
import org.apache.flink.connector.file.src.FileSource;
import org.apache.flink.connector.file.src.reader.TextLineInputFormat;
import org.apache.flink.core.fs.Path;
import org.apache.flink.streaming.api.datastream.DataStreamSource;
import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment;

public class FileSourceDemo {
    public static void main(String[] args) throws Exception {

        StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();

        // TODO 从文件读： 新Source架构
        FileSource<String> fileSource = FileSource.forRecordStreamFormat(new TextLineInputFormat(), new Path("input/words.txt"))
                .build();

        DataStreamSource<String> filesource = env.fromSource(fileSource, WatermarkStrategy.noWatermarks(), "filesource");
        filesource.print();

        env.execute();
    }
}
